Background of IAP2 / BIRC2 antibody

Apoptosis, or programmed cell death, is related to many diseases, such as cancer. Apoptosis is triggered by a variety of stimuli including members in the TNF family and can be prevented by the inhibitor of apoptosis (IAP) proteins. IAP proteins form a conserved gene family that binds to and inhibits cell death proteases (1 for review). The two isoforms of c-IAP (c-IAP1 and c-IAP2) are structurally related to XIAP, containing 3 baculoviral IAP repeat (BIR) motifs that are essential and sufficient for the binding and inhibition of caspases–3, –7, (2,3). The c-IAPs can associate with the death receptor TNF-R2, and mediate the ubiquitinization of TRAF2 following the binding of TNF-alpha by its receptor (2,4). Omi, a negative regulator of c-IAP, inhibits its activity by catalytically cleaving c-IAP (5). Another negative regulator, Smac/DIABLO, acts by enhancing the auto-ubiquitization activity of c-IAP (6).

Immunohistochemical staining of human adrenal gland shows strong nuclear and cytoplasmic positivity in cortical cells.This validation was performed by Protein Atlas and the presentation of data is for informational purposes only.

Immunofluorescent staining of human cell line U-251 MG shows positivity in nucleoli & cytoplasm.This validation was performed by Protein Atlas and the presentation of data is for informational purposes only.